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Finding the Fourth Proportional to 365,384.79, 548,012.52 and 99,166.05

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Solution

The fourth proportional to 365,384.79, 548,012.52 and 99,166.05 is: 148,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,384.79 : 548,012.52 = 99,166.05 : x
  2. Step 2: Convert to fraction form
    365,384.79/548,012.52 = 99,166.05/x
  3. Step 3: Cross multiply
    365,384.79x = 548,012.52 × 99,166.05
  4. Step 4: Simplify right side
    365,384.79x = 54,344,236,958.95
  5. Step 5: Solve for x
    x = 54,344,236,958.95/365,384.79
  6. Step 6: Final answer
    x = 148,731.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.